How To Grow Jalapenos From Fresh Seeds. Start seeds indoors about 6 weeks before the last frost of the season. Place the seeds in an envelope and label it with the seed variety and year harvested.
Start seeds indoors about 6 weeks before the last frost of the season. (i use this tool to help me decide when to start all my seeds.) set the seeds in germination mix no more than one centimeter (about 1/2 inch) deep. Grow your jalapeno peppers indoors and transplant them outdoors.
To avoid fungus and rot, make sure there is plenty of aeration.
It should take three to five weeks for germination to begin. Jalapeño peppers are planted in spring from nursery starts or from seeds started indoors. How to grow jalapeno peppers. The seeds will also begin to brown and dry up.